error in Access 2000 code

Access 2000 form. When I clicked on the button, it gives me a run-time error 91

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run-time error 91
Object variable or With block variable not set.

The statement below was highlighted

Set RecordSet_Customer = Dbs.OpenRecordset("Customer", dbOpenTable)

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You probably need to add a reference to the DAO library in your code. In the VB editor, Tools, References find and add the DAO library. I don't use DAO so I'm not sure what version you might need.

U should add DAO library into your project!

Hi Doug G and cleverpig

I did add the DAO library, but it still gives me the same error mesage.

Look it ,maybe it is helpful to U:
OpenRecordset Method Example

This example uses the OpenRecordset method to open five different Recordset objects and display their contents. The OpenRecordsetOutput procedure is required for this procedure to run.

Sub OpenRecordsetX()

Dim wrkJet As Workspace
Dim wrkODBC As Workspace
Dim dbsNorthwind As Database
Dim conPubs As Connection
Dim rstTemp As Recordset
Dim rstTemp2 As Recordset

' Open Microsoft Jet and ODBCDirect workspaces, Microsoft
' Jet database, and ODBCDirect connection.
Set wrkJet = CreateWorkspace("", "admin", "", dbUseJet)
Set wrkODBC = CreateWorkspace("", "admin", "", dbUseODBC)
Set dbsNorthwind = wrkJet.OpenDatabase("Northwind.mdb")
Set conPubs = wrkODBC.OpenConnection("", , , _
"ODBC;DATABASE=pubs;UID=sa;PWD=;DSN=Publishers")

' Open five different Recordset objects and display the
' contents of each.

Debug.Print "Opening forward-only-type recordset " & _
"where the source is a QueryDef object..."
Set rstTemp = dbsNorthwind.OpenRecordset( _
"Ten Most Expensive Products", dbOpenForwardOnly)
OpenRecordsetOutput rstTemp

Debug.Print "Opening read-only dynaset-type " & _
"recordset where the source is an SQL statement..."
Set rstTemp = dbsNorthwind.OpenRecordset( _
"SELECT * FROM Employees", dbOpenDynaset, dbReadOnly)
OpenRecordsetOutput rstTemp

' Use the Filter property to retrieve only certain
' records with the next OpenRecordset call.
Debug.Print "Opening recordset from existing " & _
"Recordset object to filter records..."
rstTemp.Filter = "LastName >= 'M'"
Set rstTemp2 = rstTemp.OpenRecordset()
OpenRecordsetOutput rstTemp2

Debug.Print "Opening dynamic-type recordset from " & _
"an ODBC connection..."
Set rstTemp = conPubs.OpenRecordset( _
"SELECT * FROM stores", dbOpenDynamic)
OpenRecordsetOutput rstTemp

' Use the StillExecuting property to determine when the
' Recordset is ready for manipulation.
Debug.Print "Opening snapshot-type recordset based " & _
"on asynchronous query to ODBC connection..."
Set rstTemp = conPubs.OpenRecordset("publishers", _
dbOpenSnapshot, dbRunAsync)
Do While rstTemp.StillExecuting
Debug.Print " [still executing...]"
Loop
OpenRecordsetOutput rstTemp

rstTemp.Close
dbsNorthwind.Close
conPubs.Close
wrkJet.Close
wrkODBC.Close

End Sub

Sub OpenRecordsetOutput(rstOutput As Recordset)

' Enumerate the specified Recordset object.
With rstOutput
Do While Not .EOF
Debug.Print , .Fields(0), .Fields(1)
.MoveNext
Loop
End With

End Sub

http://msdn.microsoft.com/library/d...enrecordset.asp